EP2101656B1 - Schneidwerkzeug mit magnetisch gesteuerter vorspannkraft - Google Patents

Schneidwerkzeug mit magnetisch gesteuerter vorspannkraft Download PDF

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Publication number
EP2101656B1
EP2101656B1 EP20070871642 EP07871642A EP2101656B1 EP 2101656 B1 EP2101656 B1 EP 2101656B1 EP 20070871642 EP20070871642 EP 20070871642 EP 07871642 A EP07871642 A EP 07871642A EP 2101656 B1 EP2101656 B1 EP 2101656B1
Authority
EP
European Patent Office
Prior art keywords
tubular member
magnet
inner tubular
outer tubular
force
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP20070871642
Other languages
English (en)
French (fr)
Other versions
EP2101656A2 (de
Inventor
Rafal Jezierski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Smith and Nephew Inc
Original Assignee
Smith and Nephew Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Smith and Nephew Inc filed Critical Smith and Nephew Inc
Publication of EP2101656A2 publication Critical patent/EP2101656A2/de
Application granted granted Critical
Publication of EP2101656B1 publication Critical patent/EP2101656B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/32—Surgical cutting instruments
    • A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
    • A61B17/32002—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes with continuously rotating, oscillating or reciprocating cutting instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/00831—Material properties
    • A61B2017/00876—Material properties magnetic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9457—Joint or connection
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9457—Joint or connection
    • Y10T83/9459—Magnetic connection

Definitions

  • US6689146 describes a powdered surgical handpiece and a cutting accessory.
  • the accessory includes a rotating hub in which magnets are seated, and from which an inner tube extends.
  • a static hub is located over the rotating hub, and an outer tube extends from the static hub over the inner tube.
  • the rotating and static hubs seat in the body of the handpiece.
  • There is a stator in the handpiece that surrounds the rotating hub. Collectively, the stator and the magnets in the rotating hub define a motor that rotates the rotating hub and the inner tube.
  • Fig. 7 shows a cross-sectional view of the cutting tool 100 of the present disclosure.
  • the tool 100 includes an outer tubular member 101 and an inner tubular member 103. Both the outer tubular member 101 and the inner tubular member 103 include a hub 105,107 coupled to the proximal end 106,108 of the tubular members 101,103.
  • the tubular members 101,103 include a metal material, such as steel or stainless steel, and the hubs 105,107 are molded from a polymer material.
  • the inner tubular member 103 is slidably disposed within the outer tubular member 101 so as to align the distal ends of the outer and inner tubular members 101,103, as described above and shown in Figs.
  • a retention feature 307 such as a modified o-ring having tabs located on a wall of the o-ring,. This can be incorporated into the design of the hub 309 of the outer tubular member 305.
  • the inner tubular member 304 has a groove 308 that the retention feature 307 rests in to retain the inner tubular member 304 when the inner tubular member 304 is disposed into the outer tubular member 305.
  • the retention feature may also include the use of sensor magnets incorporated into the material of the hub 309 of the outer tubular member 305.
  • the polymer bonded magnetic material may have a different polarity from the magnets so as to create an attractive force between the magnet and the magnetic material.
  • the magnets may also be embedded in the hubs by pressing the magnet into the hub via a customized or industrial press or by molding the magnet into the hub by placing a polymer material and the magnet into a mold and then forming the hub.

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)

Claims (23)

  1. Ein Schneidewerkzeug (100) zur Verwendung innerhalb eines chirurgischen Handstücks, wobei das Handstück eine Gelenkwelle umfasst, wobei das Schneidewerkzeug Folgendes beinhaltet:
    ein äußeres röhrenförmiges Element (101), das einen ersten Magneten (110) umfasst; und
    ein inneres röhrenförmiges Element (103), das einen zweiten Magneten (111) umfasst, wobei das innere röhrenförmige Element gleitbar innerhalb des äußeren röhrenförmigen Elements angeordnet ist,
    wobei eine Kraft zwischen dem ersten Magneten (110) und dem zweiten Magneten (111) geschaffen wird, wenn das innere röhrenförmige Element gleitbar innerhalb des äußeren röhrenförmigen Elements angeordnet ist, und wobei die Kraft eine Vorspannkraft zwischen dem inneren röhrenförmigen Element und dem äußeren röhrenförmigen Element schafft.
  2. Werkzeug gemäß Anspruch 1, wobei die Kraft eine Anziehungskraft beinhaltet.
  3. Werkzeug gemäß Anspruch 1, wobei die Kraft eine Gegenkraft beinhaltet.
  4. Werkzeug gemäß Anspruch 1, wobei der erste Magnet und der zweite Magnet unterschiedliche Polaritäten aufweisen.
  5. Werkzeug gemäß Anspruch 1, wobei der erste Magnet und der zweite Magnet gleiche Polaritäten aufweisen.
  6. Werkzeug gemäß Anspruch 1, wobei ein Luftspalt zwischen dem ersten Magneten und dem zweiten Magneten besteht.
  7. Werkzeug gemäß Anspruch 6, wobei der Luftspalt (206) zwischen ungefähr 0,025 mm (0,001 Zoll) und ungefähr 7,620 mm (0,300 Zoll) beträgt.
  8. Werkzeug gemäß Anspruch 1, wobei der erste Magnet an das äußere röhrenförmige Element gekoppelt ist.
  9. Werkzeug gemäß Anspruch 8, wobei der erste Magnet an eine Nabe (105) des äußeren röhrenförmigen Elements gekoppelt ist.
  10. Werkzeug gemäß Anspruch 1, wobei der zweite Magnet an das innere röhrenförmige Element gekoppelt ist.
  11. Werkzeug gemäß Anspruch 10, wobei der zweite Magnet an eine Nabe (107) des inneren röhrenförmigen Elements gekoppelt ist.
  12. Werkzeug gemäß Anspruch 1, wobei das innere röhrenförmige Element und das äußere röhrenförmige Element jeweils magnetisches Material beinhalten.
  13. Werkzeug gemäß Anspruch 12, wobei eine Nabe des inneren röhrenförmigen Elements und eine Nabe des äußeren röhrenförmigen Elements jeweils magnetisches Material beinhalten.
  14. Werkzeug gemäß Anspruch 13, wobei das magnetische Material der Nabe des inneren röhrenförmigen Elements und das Material der Nabe des äußeren röhrenförmigen Elements gleiche Polaritäten aufweisen.
  15. Werkzeug gemäß Anspruch 13, wobei das magnetische Material der Nabe des inneren röhrenförmigen Elements und das Material der Nabe des äußeren röhrenförmigen Elements unterschiedliche Polaritäten aufweisen.
  16. Ein Verfahren zum Schaffen einer Kraft zwischen einem äußeren röhrenförmigen Element und einem inneren röhrenförmigen Element eines Schneidewerkzeugs, wobei das Verfahren Folgendes beinhaltet:
    Koppeln eines ersten Magneten an das äußere röhrenförmige Element;
    Koppeln eines zweiten Magneten an das innere röhrenförmige Element; und
    gleitbares Anordnen des inneren röhrenförmigen Elements innerhalb des äußeren röhrenförmigen Elements, um eine Kraft zwischen dem äußeren röhrenförmigen Element und dem inneren röhrenförmigen Element zu schaffen, wobei die Kraft eine Vorspannkraft zwischen dem inneren röhrenförmigen Element und einer Gelenkwelle bei Eingriff des inneren röhrenförmigen Elements und der Gelenkwelle schafft.
  17. Verfahren gemäß Anspruch 16, wobei die Kraft eine Anziehungskraft beinhaltet.
  18. Verfahren gemäß Anspruch 16, wobei die Kraft eine Gegenkraft beinhaltet.
  19. Verfahren gemäß Anspruch 16, wobei der erste Magnet und der zweite Magnet gleiche Polaritäten aufweisen.
  20. Verfahren gemäß Anspruch 16, wobei der erste Magnet und der zweite Magnet unterschiedliche Polaritäten aufweisen.
  21. Verfahren gemäß Anspruch 16, wobei der erste Magnet an eine Nabe des äußeren röhrenförmigen Elements gekoppelt ist.
  22. Werkzeug gemäß Anspruch 16, wobei der zweite Magnet an eine Nabe des inneren röhrenförmigen Elements gekoppelt ist.
  23. Verfahren gemäß Anspruch 16, wobei das Koppeln des ersten Magneten an das äußere röhrenförmige Element und des zweiten Magneten an das innere röhrenförmige Element mechanisches Koppeln, magnetisches Koppeln oder Binden beinhaltet.
EP20070871642 2006-12-05 2007-11-29 Schneidwerkzeug mit magnetisch gesteuerter vorspannkraft Not-in-force EP2101656B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/566,738 US8931388B2 (en) 2006-12-05 2006-12-05 Cutting tool having a magnetically controlled pre-load force
PCT/US2007/085862 WO2008082826A2 (en) 2006-12-05 2007-11-29 A cutting tool having a magnetically controlled pre-load force

Publications (2)

Publication Number Publication Date
EP2101656A2 EP2101656A2 (de) 2009-09-23
EP2101656B1 true EP2101656B1 (de) 2015-04-08

Family

ID=39476754

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070871642 Not-in-force EP2101656B1 (de) 2006-12-05 2007-11-29 Schneidwerkzeug mit magnetisch gesteuerter vorspannkraft

Country Status (5)

Country Link
US (1) US8931388B2 (de)
EP (1) EP2101656B1 (de)
JP (2) JP5936807B2 (de)
AU (1) AU2007340189B2 (de)
WO (1) WO2008082826A2 (de)

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US8931388B2 (en) 2006-12-05 2015-01-13 Smith & Nephew, Inc. Cutting tool having a magnetically controlled pre-load force
US8925437B2 (en) 2006-12-05 2015-01-06 Smith & Nephew, Inc. Cutting tool having a magnetically controlled pre-load force
US9668762B2 (en) * 2011-03-30 2017-06-06 Smith & Nephew, Inc. Medical device
DE102013220562B4 (de) * 2013-10-11 2024-12-19 Robert Bosch Gmbh Baugruppe für eine elektrische Maschine, Verfahren zur Herstellung einer Baugruppe und elektrische Maschine mit einer Baugruppe
US9480484B2 (en) * 2014-08-01 2016-11-01 Smith & Nephew, Inc. Modular surgical drive hub
USD782026S1 (en) * 2015-08-04 2017-03-21 Covidien Lp Endoscope sheath with oblique tip
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US11871951B2 (en) * 2021-06-25 2024-01-16 Arthrex, Inc. Surgical tool seal

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Also Published As

Publication number Publication date
WO2008082826A2 (en) 2008-07-10
US8931388B2 (en) 2015-01-13
JP5936807B2 (ja) 2016-06-22
JP2014237049A (ja) 2014-12-18
US20080132928A1 (en) 2008-06-05
AU2007340189A1 (en) 2008-07-10
JP5933658B2 (ja) 2016-06-15
EP2101656A2 (de) 2009-09-23
AU2007340189B2 (en) 2014-03-13
JP2010511484A (ja) 2010-04-15
WO2008082826A3 (en) 2008-12-18

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